title: On the use of ionic liquid capillary columns for analysis of aromatic hydrocarbons in low-boiling petrochemical products by one-dimensional and comprehensive two-dimensional gas chromatography.
abstract: One-dimensional and comprehensive two-dimensional flow modulated gas chromatography with simultaneous flame ionization and mass spectrometric detection were applied for the identification and quantification of benzene, toluene, ethyl benzene and xylenes (BTEX) as well as of all C9-C11 aromatic hydrocarbons in the low-boiling petroleum products gasoline, reformate and fluid catalytic cracking (FCC) samples. GC×GC experiments were performed on two reversed phase polarity column sets namely SLB-IL100 (25m×250μm i.d.×0.2μm df)+HP-5MS (5m×250μm i.d.×0.25μm df) and SLB-IL111 (30m×250μm i.d.×0.2μm df)+HP-5MS (5m×250μm i.d.×0.25μm df). The one-dimensional GC experiments were carried out on the same ionic liquid columns. The most powerful method is GC×GC on the SLB-111+HP-5MS column combination. Quantitative analysis of individual aromatic hydrocarbons (C6-C11) present in gasoline, reformate and fluid catalytic cracking (FCC) samples was performed by GC×GC-FID using the internal normalization method. Mass spectra obtained by GC×GC-qMSD were used for identification of the aromatic hydrocarbons in these samples.
authors.affiliation: Institute of Analytical Chemistry, Slovak University of Technology, Bratislava, Slovakia. jan.krupcik@stuba.sk
authors.forename: Ján
authors.initials: J
authors.lastname: Krupčík
authors.forename: Roman
authors.initials: R
authors.lastname: Gorovenko
authors.forename: Ivan
authors.initials: I
authors.lastname: Špánik
authors.forename: Ingrid
authors.initials: I
authors.lastname: Bočková
authors.forename: Pat
authors.initials: P
authors.lastname: Sandra
authors.forename: Daniel W
authors.initials: DW
authors.lastname: Armstrong
mesh_terms: D002849:Chromatography, Gas / Q000295:instrumentation* / Q000379:methods*; D005410:Flame Ionization; D006841:Hydrocarbons, Aromatic / Q000032:analysis*; D052578:Ionic Liquids / Q000737:chemistry*; D057230:Limit of Detection; D010578:Petroleum / Q000032:analysis*
chemical_list: D006841:Hydrocarbons, Aromatic; D052578:Ionic Liquids; D010578:Petroleum
keywords: Aromatic hydrocarbons; Comprehensive two-dimensional gas chromatography; Ionic liquid capillary columns; Low-boiling petroleum samples; One-dimensional gas chromatography